采用光聚聚体图法来监测心血管系统与年龄相关的变化
Biljana Djurić1, Katarina Žikić2, Zorica Nestorović3
1Institute of Physiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
Frontiers in physiology
|August 4, 2023
概括
衰老显著影响心血管健康,降低了动脉血流波形中的α1/α2比率. 这种非侵袭性光电磁扫描方法有效地监测成年人与年龄相关的心血管变化.
科学领域:
- 心血管生理学心血管生理学
- 生物医学工程 生物医学工程
- 老年学是指老年学的学科.
背景情况:
- 衰老是影响所有器官系统的自然生理过程,需要研究与年龄相关的变化.
- 随着年龄的增长,对动脉血管变化的监测在人类健康研究中是一个重大挑战.
- 开发新的诊断工具对于理解和管理与年龄有关的心血管变化至关重要.
研究的目的:
- 开发一种新型的诊断方法,使用光斑血学来评估成人心血管系统的变化.
- 通过使用非侵入性技术,研究衰老过程对心血管功能的影响.
- 分析动脉血流波形及其与年龄的关系.
主要方法:
- 采用光电脉冲图传感器和单通道心电图来记录动脉血流的波形5分钟.
- 使用非线性确定波动分析 (DFA) 分析了血液流动幅度时间序列.
- 从DFA系数计算alpha1/alpha2比,并将其与受试者年龄 (20-70岁) 相关联.
主要成果:
- 在50岁以下和50岁以上的受试者之间观察到α1/α2比率的显著差异.
- 阿尔法1/阿尔法2比率表现出随着年龄的增加而呈指数级下降.
- 这一比率在年轻人中始终高于1,在中年人中约为1,在老年人中低于1.
结论:
- 老龄化导致健康个体的α1/α2比率有量化下降.
- 这种非侵入性的基于光聚体吸收的方法可以有效地检测和监测与年龄相关的心血管系统变化.
- 这些发现支持使用这种技术来评估不同年龄组的心血管健康.
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